حكم الدال زبرجد ، و اشتقاق الزبرج وأسبقية المصدر على الفعل في رأي أبي العلاء المعري.

This is one of the numerous syntactic and morphological issues raised by Abu Alalaa Almaari in his work "Rissalatu Al Ghofran" (the Message of Forgiveness). He treated the question in his own particular way using both a literary style and a scientific one. He used to select any point on which he disagreed with others and made the hero of the Message of Forgiveness raise it with poets and men of knowledge in the form of a literary and artistic dialogue during his fictitious trip to the other world. In this imaginary trip, the hero met with poets and linguists with whom he discussed some problematic linguistic issues with a lot of scientific skill to support the ideas of some and to refute those of others or to correct a common grammatical mistake made by a poet or to criticize a poetic narration.